Restore?

I have a Koala Mini I buy a year and a half ago. I stile have a mix of ubuntu and kubuntu 8.04. I plan to upgrade to kubuntu 10.04 (lts) when it get out. I want to know if I need to do a Restore in the System76 drivers. I would also like to know what it is gonna do? What it is gonna install? Since I install kubuntu and not ubuntu will the restore install something specific to ubuntu?